Finding the Fourth Proportional to 9,058.51, 12,497.79 and 5,280.82

Step by Step Solution

1. Step 1: Write the proportion equation
   9,058.51 : 12,497.79 = 5,280.82 : x
2. Step 2: Convert to fraction form
   9,058.51/12,497.79 = 5,280.82/x
3. Step 3: Cross multiply
   9,058.51x = 12,497.79 × 5,280.82
4. Step 4: Simplify right side
   9,058.51x = 65,998,579.39
5. Step 5: Solve for x
   x = 65,998,579.39/9,058.51
6. Step 6: Final answer
   x = 7,285.81